Totaling device fob adding machines



Sept. 5, 1933;

G. J. BARRETT TOTALING DEVICE FOR ADDING MACHINES Filed Sept, 8, 1931 4She'ets-Sheet l ATTORNEY f Sept- G. J. BARRETT TOTALING DEVICE FORADDING MACHINES Filed Sept. 8, 1931v 4 Sheets-Sheet 2 mvmToR 6/6/72? Jflak/ aff ATTORNEY;

p 1933- G. J. BARRETT 1,925,089

TOTALING DEVICE FOR ADDING MACHINES Filed Sept. 8, 1931 4 Sheets-Sheet 3INVENTOR ii) 6/6/21; (I Ear/"Eff Wad/W ATTORNEY S v Sept. 5, 1933.

G. J. BARRETT TOTALING DEVICE FOR ADDING MACHINES 4 Sheets-Sheet 4 FiledSe t. 8, 1931 INVE NTOR /mr/ J. flamf/f BY ATTORNEYS) Patented Sept. 5,1933 UNITED STATES PATENT OFFICE Glenn J. Barrett,

York, N. Y.

Grand Rapids, Micln, assignor to Portable Adding Machin e Company, New

Application September 8, 1931. Serial No. 581,551

8 Claims.

My invention relates to improvements in totaling devices for addingmachines of the class described hereinafter and its objects are:

First, to provide a total lever operatable in two directions, normallyretained in a central position, the movement of said lever in onedirection setting devices so that the total upon the accumulators may bepositioned for printing during the operation of the main operatingmechanism, and the accumulation returned into the accumulatorsthereafter fora subtotal, and when said lever is moved in the oppositedirection, the same total will be positioned for leaving theaccumulators at zero position. The former operation is known as asubtotal operation and the latter, as a final total. This briefly is toprovide means wherein a movement of said total lever in either directionproduces exactly the same result so far as positioning the total forprinting is concerned, but when moved in one direction in addition itpositions parts so that the accumulators are left clear.

Second, to provide means for forcing the total lever back to normalposition at the limit of the movement of the main operating mechanismaway from normal position, in order to prevent a possible maloperationof the machine as hereinafter explained and described.

Further objects pertaining to details will appear from the descriptionto follow. The invention is defined and pointed out in the claims.

I have chosen to describe my invention as applied to certain structuresof the well-known Corona adding machine, and the several views herewithclearly disclose its principles, in which:

Fig. 1 is a side elevation of my invention as applied to certaincooperating parts of a Corona adding machine, a portion of the mainoperating mechanism being broken away to disclose the means for forcinga return of the total lever to I normal position.

Fig. 2 is a side elevation view of the parts of a Corona adding machinewith which my invention cooperates, said parts being in position aftermoving my total lever in the direction to produce a final total, theoperating mechanism being near the forward limit of its movement,showing the means for forcing the total lever (partially in dottedlines) to normal position about to become effective.

Fig. 3 is a detail elevation showing approximately aside elevation ofthe same parts as in the previous figures, certain details being omittedof the total lever returned to normal position and other parts set toleave the accumulators at zero,

with the operating forward movement.

Fig. 4 is a detail elevation showing practically the same parts as seenin Fig. 3, with the operating mechanism starting upon its return towardsnormal position, the accumulator frame Just being forced down out ofactive accumulative position.

Fig. 5 is a detail elevation showing the position of certain parts ofsaid Corona adding machine after depressing the subtotal button, andwithout setting said parts for leaving the accumulators at zeroposition.

Fig. 6 is a detail of the cam 18 and cooperating pin for relieving thepositioning member to central normal position.

My invention is applicable to any key set adding and listing machine.This machine is exemplified in the well known Corona adding machine suchas appears in various patents of mine and particularly in United StatesPatent No. 1,681,567, issued August 21, 1928, for Accumulator controlmeans for adding machines. These machines contain the following wellknown mechanical fea tures or elements:

Adding actuators having a reciprocating movement.

Numeral type adapted to move in synchrony with said adding actuators andarranged in denominate columns to correspond and coact with saidactuators.

Rotatable accumulators mounted in an oscillating frame adapted to gointo and out of mesh or active relation with said actuators.

A main operating mechanism having a reciprocatory movement for actuatingthe various mechanisms of said adding machine, controlled by the manualsetting oi controlling keys, for

mechanism at the limit oi its printing an item during the forwardmovement thereof, and adding same into said accumulators upon the returnthereof to normal position, said operation being known as an addingoperation, wherein during the first portion of said operation saidaccumulators are maintained out of mesh or active relation with saidaccumulators, and during the second portion of said operation when saidmain operating mechanism is returning toward normal position, saidaccumulators are maintained in mesh with said accumulators.

A settable non-add means, the function of which is to maintain saidaccumulators out of mesh with said actuators during the return of saidoperating mechanism toward normal position.

A total positioning means upon the operation of which prior to theoperation of said main opcrating mechanism, said accumulators aremaintained in mesh with said actuators during the movement of said mainoperating mechanism, thereby rotating said accumulators back to zeroposition and positioning type respectively in printing position tocorrespond with the accumulation upon said accumulators. In machines ofthis class, when said non-add means is positioned in conjunction withthe positioning of said total means, the operation of the main operatingmechanism presents type representing the total accumulation upon theaccumulators, and afterwards forces said accumulators out of mesh oractive relation with their actuators while at the zero position to whichthey were rotated when presenting said type representing said total, thelatter operation being known in the art as a final total operation. Theoperation of said total means alone produces what is known as a subtotaloperation, the accumulation being returned to the respectiveaccumulators as same are maintained in mesh with their actuators duringthe complete cycle of operation of said main operating mechanism.

The parts will be identified by their numerals of reference which arethe same in all the views.

In orderto understand the application of my invention to the Coronaadding machine, I will now describe certain features of the latter whichcooperate with my, invention.

The dottedli'nesin Fig. 1 disclose the outlines of the settgblenurn'eralkeys of the Corona adding the! with the platen and printiii) ' ingmechanism.

which, however, form no part of my inventiong" liis the' main operatinghandle having a. reclprocatory movement. 2 is an oscillating plate towhich said handle 1 is attached. 3 is the pivot or shaft upon which itoscillates and thus reciprocates. 4 is a vibrating accumulatorframe-pivoted at 5. This frame, it will be understood, contains therotary accumulators of the adding machine. 6 is a roller mounted uponthe pivoted arm '7 and carried by said frame 4 pivoted at 41. 21 is acam surface on the plate 2 which contacts with the roller 6 carried byarm 7 during an early portion of the forwardmovement of the handle awayfrom normal position. This contact of cam 21 with roller 6 forces theaccumulator frame out of normal active position for accumulating. Duringthe early portion of the return of said operating handle 1 toward normalposition this roller 6 is. forced toward the left and the accumulatorframe is allowed to return to normal active position by virtue of aspring, not shown in the accompanying illustrations. Such is the usualconstruction.

8 is a total positioning plate pivoted at 9 to the main frame of theadding machine, a portion of which appears in dotted lines. When thelower portion of this oscillating plate 8 is swung back or toward theright, the stud 81 on a depending arm 82 thereof contacts with the arm 7causing the roller to take the position shown in Fig.2 so that it is notcontacted by the cam face 21 and under this condition the accumulatorframe is allowed to remain in active normal position.

It will be understood that when the accumulator frame 4 is in normalposition or position shown in Fig. 1, the accumulators carried by saidaccumulator frame are in active accumulative position with relation tothe adding actuators of the adding machine. When the accumulator frame 4is in position shown in Fig. 4, with the roller 6 bearing against thearc of the cam 21 on the periphery of the plate 2, the accumulator frameis in inactive accumulative position with reference to the addingactuators of the adding ma-' chine.

In the Corona adding machine a subtotal is obtained by first causing thelower portion 82 of the total positionable member 8 to swing toward theright, or toward the rear of the machine and then starting the mainoperating mechanism, after which a pin 83 in the plate 8 (Fig. 5) isengaged by the circular plate 22 carried by the member 2 and the plate 8is held in position shown in Fig. 5 until the operating handle nears theend of its forward movement or position shown in Fig. 2. A slightlyfurther movement of the plate 2 (Fig. 2), in the direction 'of thearrow, will cause the pin 83 to drop off the plate 22 when the plate 8will return to normal position shown in Fig. 1 under the tension of thecentralizing spring 10 shown in Fig. 1. The totalizer wheels are swungto engagement by the usual spring means indicated above but notillustrated.

To obtain a final total wherein the accumulators are left at zeroposition, the said plate 8 is positioned just as in obtaining asubtotal, but in addition certain other parts are positioned so thatimmediately after the plate 8 returns to normal position after being inthe position shown in Fig. 2, and upon the early return of the mainoperating mechanism toward normal position, the accumulator frame isforced out of active accumulative position as shownin Fig. 4. In theCorona .adding machine this additional mechanism constitutes a non-addpositionable mechanism and consists of the latchable key stem 11, thenon-add pawl 12, and the yielding positioning spring 13. Normally theend 121 of the pawl 12 is out of the path of travel of the pin 23;however, when the non-add parts are positioned as in Fig. 3 the end 121of the pawl 12 is lifted into the path of travel of the pin 23 shown inFig. 3 as being in its extreme position, the operating mechanism beingat the limit of its forward movement. During the early return of theoperating mechanism, this pin 23 contacts with the end121 of pawl 12,with 1% the parts positioned as shown in Fig. 4. The pawl 12contactswith a pin 84 in the plate 8 causing the latter to swing in thedirection of the arrow (see Fig. 3) until the pin 85 unlatches the keystem 11 and the latter returns to normal position as shown in Fig. 4,said accumulator frame 4 being forced out of active position by reasonof contact of cam 89 carried by said total positioning plate 8, againststud 42 in said accumulator frame 4, when said plate 8 swings toward theleft actuated by said pawl 12 against said stud 84. Thus the accumulatorframe is maintained out of active accumulation position during a returnor adding movement of said main operating mechanism. 135

A portion of my invention consists of a finger key lever 14 suitablymounted to move in two directions, and normally held in a centralposition. I have shown this finger key 14 pivoted at 15 upon the sideplate of the adding machine as shown in Fig. l. 16 is a centralizingspring for this finger key 14 which retains the latter in a centralnormal position. 141 is a button carried on the upper portion of the key14, the depression 14F of which forces the upper portion of said keyrearwardly. 142 is another button carried upon a forward portion of thekey 14, the depression of which button forces said key to rock in theopposite direction to that when moved by said but- 150 ton 141. 143 is acontact portion of key 14 which panacea is adapted to contact with thepin 86 in the plate 8. When the button 141 is depressed this contactportion 143 contacts with said pin 86 and a continued movement of saidbutton 141 causes said plate 8 to swing to the position shown in Fig. 2.This renders the roller 6 inoperative as explained and the accumulatorsare left in active accumulative position during a movement of the mainoperating mechanism to position shown in Fig. 2. It is understood thatin machines of the class of the Corona, type for printing a total arepositioned by a backward rotation of the accumulators, rotated by theirrespective adding actuators to the zero position.

Parts above described for a non-add operation, forcing the accumulatorsout of active accumulative position, are also positioned by themoveunent of said button 141 to position'shown in Fig. 2, as I will nowdescribe. 17 is a lever pivoted at 9, said lever having an angularlateral contact ear 171. The movement of the key 14 causes the contactportion 143 to contact against said ear 171 causing the forward end 172of said lever 17 to swing downwardly contacting with pin 111 (see dottedlines Fig. 2) in the key stem 11 forcing the latter and its cooperatingparts to the position shown in Fig. 2. Upon release of said button 141and after starting the main operating mechanism, said key stem 11remains in latched position shown in Fig. 3, said button 141 and saidlever 17 return to normal position shown in the same figure. Theoperation of the adding machine after setting parts as just described,produces a final total operation leaving the accumulators clear.

When it is desired to print a subtotal returning the accumulation backinto the accumulators, this total positioning plate 8 is moved in thesame direction as by the contact of 143 against the pin 86 as previouslydescribed but by means of contact of the cam surface 144 upon the plate14 against the stud 87 on the plate 8. In order to accomplish thismovement, the button 142 is depressed which swings the key 14 in theoppo site direction from a depression of the button 141, but owing tothe contact of the cam 144 against stud 87, the plate 8-- is forced tomove in the same identical direction and amount of travel as when forcedby the contact of 143 against the pin 86. In the operation of the button142 however, the-plate 8 is made to swing without positioning any of thenon-add parts, 11, 12, 13, etc. Thus it will be seen that my inventionprovides for a member movable in two distinct directions away from acentral normal position. When moved in one direction, it positions partsfor printing a total, and also for forcing the accumulators out ofactive accumulative position during the return of the operatingmechanism for the final total; and when moved in the opposite directionpositions the same parts for printing the subtotal; that is, the samenumber which is returned to the accumulator, but does not position theparts for forcing the accumulators out of active accumulative positionas in the final total. The said total positioning parts move in the samedirection each time when actuated by the key 14 moving in oppositedirections. This avoids the use of two keys operating in the same.direction and possible confusion by unintentional operation of bothsaid keys.

Another feature of my invention is to provide means for forcingprimarily the total positioning member 8 back to normal central positionat the end of the forward movement of the operating and with it ofcourse the key 14'; maloperation of the machine might key 14 were heldin depressed position during the early return of the operatingmechanism, as this would prevent the operation of the non-add feature,or feature to force the accumulators out of active accumulative positionin order to leave them at zero position. The restoration of total plate8 by pawl 12 is effective in total taking operations only, and for thatreason another positive restoring means is provided for plate 8 insub-total cycles.

This feature of my invention includes a means carried by the mainoperating mechanism adapted to contact with said total positioning meanswhen the latter is out of normal position or when the latter is in totalprinting position, which I will now describe. I provide a cam piece 18rigidly attached to the rear side of the plate 2 of the main operatingmechanism (Fig. 1), showing a portion of said plate 8 broken away toexpose said cam plate. A pin 88 is positioned on said total positioningmember a normally out of the path of travel of this cam plate 18.However, when said positioning member 8 is positioned as described andshown in Fig. 2, said pin 88 comes into the path of travel of the camplate 18 and is contacted by the latter when the operatingmechanismnears the limit of its forward movement, and said positioningmember 8 is forced back to normal position when the operating mechanismreaches the limit of its forward movement (see Fig. 6). If said key 14be held in depressed position, the contact portion 143 being against thepin 86, when said positioning member 8 is forced back to normalposition, said key must also be forced out of operative position. Fig.2shows the cam 18 in dotted lines just beginning to contact with the pin88. Fig. 6 shows the cam 18 at the limit of its motion, having forcedthe pin 88 back to central normal position. It will be readilyunderstood how a continued movement of said cam 18 will force said pin87 down, and reposition said positioning member 8.

While I have shown my invention applied to the Corona adding machinemain operating and totaling mechanisms, the same may be applied to anystandard adding machine having equivalent parts and actions.

I desire to claim the specific structure illustrated and also theinvention broadly as pointed out in the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

'1. In an adding machine of the class described having the elements asspecified, and embracing a total positioning means, a non-addconditioning means, and a main operating mechanism, the combination of amanually operable pivoted member adapted to swing in either directionaway from a central normal position, a yielding means for normallymaintaining said pivoted member in normal position, finger keys orbuttons carried upon said pivoted member at opposite positions from avertical line through the pivotal point of said pivoted member, meansfor moving the total positioning means of said adding machine in thesame direction by movements of said pivoted member in either directionaway from said central normal position, consisting of contact pointscarried by said total positioning means, differentially arranged,contact connections from said pivoted member to cooperate with saidcontact points upon said total positioning means mechanism, Otherwise aresult if said respectively one of which contact points on said pivotedmember being a cam, means for setting the non-add means of said addingmachine when moving said pivoted means in one direction from said normalcentral position, and means for forcing said pivoted member back tonormal central position when said operating mechanism nears the limit ofits forward movement consisting of a cam actuated by said main operatingmechanism, a pin or stud in said total positioning means normally out ofthe path of travel of said cam, but positioned in the path of travel ofsaid cam when said total means is positioned for the printing of atotal.

2. In an adding machine of the class described having the elements asspecified, and embracing a total positioning means, a non-addconditioning means, and a main operating mechanism, the combination of amanually operable pivoted member adapted to swing in either directionaway from a central normal position, a yielding means for normallymaintaining said pivoted member in normal position, finger keys carriedupon said pivoted member so positioned that a depression of eachalternately causes said pivoted member to swing in opposite directions,means for moving the total positioning meansof said adding machine inthe same direction by movements of said pivoted member in oppositedirections away from said central normal position, consisting of contactpoints upon said total positioning means to contact and cooperate withcontact points upon said pivoted member, one of said contact points onsaid pivoted member being in the form of a 'cam, means for setting thenon-add means of said adding machine when moving said pivoted member inone direction away from said central normal position, and means forforcing said pivoted member back to normal position when said mainoperating mechanism nears the limit of its forward movement away fromnormal position consisting of an oscillating contact member carried bysaid main operating mechanism and a contact portion on said total meansto cooperate with said contact member carried by said main operatingmechanism normally out of the path of travel of said contact member butmovable into said path of travel when said total means is in position toproduce a total during the operation of said main operating mechanism.

3. In an adding machine of the class described having the elements asspecified, and embracing a total positioning means, a non-addconditioning means, and a main operating mechanism, the combination of amanually operable pivoted member adapted to move in either directionaway from a central normal position, a yielding means for normallymaintaining said pivoted member in said central normal position,suitable finger keys mounted upon said pivoted member for moving thesame in opposite directions respectively away from normal position,contact means between said pivoted member and the total positioningmeans of said adding machine, whereby a movement of said pivoted memberin either direction causes said total means to move in the samedirection, means for setting the said non-add means in operativeposition with relation to the main operating mechanism when moving saidpivoted member in one direction away from said normal position, andmeans for forcing said pivoted member back to normal position when saidmain operating mechanism nears the limit of its forward movementconsisting of a contact means carried by said main operating mechanismand connections to said total positioning means when the latter is inposition for causing said main operating mechanism to present forprinting, type representing the accumulation upon said accumulators.

4. In an adding machine of the class described having the elements asspecified, and embracing a total positioning means, a non-addconditioning means, and a main operating mechanism, the combination of amanually operable movable member adapted to move in either directionaway from a central normal position, a yielding means for normallymaintaining said manually movable member in a central normal position,contact means between said manually operable member and the totalpositioning means of said adding machine, whereby a movement of theformer in either direction away from said normal-position,

moves said total means in the same direction, means for setting thesettable non-add means of said adding machine by a movement of saidmanually operable movable member in one direction, and means actuated bythe main operating mechanism of said adding machine for forcing saidtotal positioning means and said manually operable movable member backto normal position when said main operating mechanism nears the limit ofits forward movement away from normal position.

5. In an adding machine of the class described having the elements asspecified, and embracing a total positioning means, a non-addconditioning means, and a main operating mechanism, the combination of amanually operable movable member adapted to move in either directionaway from a central normal position, a yielding means for normallymaintaining said manually operable member in said normal position,suitable connections between said manually operable member and the totalpositioning means of said adding machine whereby a movement of saidmanually operable member in either direction away from said normalposition moves said total positioning means in the same direction, andmeans for setting the non-add means of said adding machine in operativeposition with relation to said main operating mechanism actuated by themovement of said manually operable member in one direction.

6. In an adding machine of the class described having the elements asspecified, and embracing a total positioning means, a non-addconditioning means, and a main operating mechanism, the combination of amanually operable movable member adapted to move in two differentdirections, suitable connections between said manually operable memberand the total positioning means of said adding machine whereby amovement of said-manually operable member in either of said twodirections, moves said total positioning means in the same direction,and means connected to said manually operable member for setting thenon-add means of said adding machine in operative position with relationto said main operating mechanism, when said manually operable member ismoved in one of said directions.

GLENN J. BARRETT.

